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A computational method for key-performance-indicator-based parameter identification of industrial manipulators

机译:基于关键性能指标的机械臂参数辨识的计算方法

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摘要

We present a novel derivative-based parameter identification method to improve the precision at the tool center point of an industrial manipulator. The tool center point is directly considered in the optimization as part of the problem formulation as a key performance indicator. Additionally, our proposed method takes collision avoidance as special nonlinear constraints into account and is therefore suitable for industrial use. The performed numerical experiments show that the optimum experimental designs considering key performance indicators during optimization achieve a significant improvement in comparison to other methods. An improvement in terms of precision at the tool center point of 40% to 44% was achieved in experiments with three KUKA robots and 90 notional manipulator models compared to the heuristic experimental designs chosen by an experimenter as well as 10% to 19% compared to an existing state-of-the-art method.
机译:我们提出了一种新颖的基于导数的参数识别方法,以提高工业机械手工具中心点的精度。在优化过程中,直接将工具中心点作为问题表述的一部分,作为关键性能指标。此外,我们提出的方法将避免碰撞作为特殊的非线性约束因素考虑在内,因此适合工业应用。进行的数值实验表明,与其他方法相比,在优化过程中考虑关键性能指标的最优实验设计取得了显着改善。与实验者选择的启发式实验设计相比,使用三个KUKA机器人和90种名义操纵器模型进行的实验将工具中心点的精度提高了40%至44%,与之相比,该精度提高了10%至19%现有的最先进的方法。

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